Synthesis of a New Cyclophane Host and Crystal Structures of Its Compounds with Neutral Guests

A new cyclophane host molecule 3 is prepared by connecting the oxygenatoms of twoα,α′-di(4-hydroxyphenyl)-1,4-diisopropylbenzene units withtwo trimethylene spacers. Solid-state structures are determined forcompounds of 3 with dichloromethane and p-xylene guests. The crystals of thetwo host-guest compounds are isomorphous.